Sash-fastener.



J. A. JOHNSON.

SASH -FASTENER.

APPLICATION TILED JULY 1a, 1903.

949,359. Patented Feb. 15,1910.

2 SHEETS-SHEET 1.

J. A. JOHNSON.

SASH FASTENER.

APPLICATION FILED JULY 13,1908.

949,359. Patented Feb. 15, 1910.

Z 2 SHEETS-SHEET 2.

JOHN A. JOHNSON, OF CHICAGO, ILLINOIS.

SASH-FASTENER.

Specification of Letters Patent.

Application filed July 13, 1908.

Patented Feb. 15, 1910.

Serial No. 443,199.

To all whom it may concern:

Be it known that I, JOHN A. JOHNSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Sash-Fasteners, of which the following is a specification.

My invention is of that class of sash locks described and illustrated in Letters Patent of the United States granted to me and numbered and dated as follows: No. 048909, April 3rd, 1900, and No. 712306, dated October 28, 1902.

The object of my present invention is to simplify, cheapen and improve the structure and operation of the sash fastener.

The manner in which I accomplish my object is described in the following specification and illustrated in the accompanying drawings, in which Figure 1 is a top plan, showing disconnected position of the device to allow the sash to be opened to the full extent of their movements; Fig. 2 is a top plan showing the parts in the locked position, the top and bottom sash being secured immovably together; Fig. 3 is a top plan showing the parts connected together in a position allowing the windows to be opened a limited distance for ventilation; Fig. 4 is a side elevation showing the parts in position locking the sash as shown in Fig. 2; Fig. 5 is a side elevation of the view shown in Fig. 3; Fig. 6 is a side elevation showing the position of the parts connected together when the sash is open to the limit permitted by the device for ventilation; Fig. 7 is a top plan view of the base of the device; Fig. 8 is a vertical cross section on the line 88 Fig. 7, of part of the base, the cap thereon, and showing the locking member and spring in the base and cap; Fig. 9 is an elevation of the cap; Fig. 10 is an underneath View of the cap shown in Fig. 9.

In the drawings A indicates the top rail of a lower window sash, and A is a bottom rail of an upper sash; B is the base of the sash fastener adapted to be secured by screws to the rail A as shown in Figs. 1, 2 and 3. The central part of this base is a vertical cylinder B the upper part B of which is threaded externally as shown in section in Fig. 8. In the interior bottom of this cylinder is a vertical hole B which is located to one side of the axis of the c linder. On the opposite side of the cylin or is a vertical notch B extending from the bottom up through the threaded part B in the hole B and notch B, within the base is a button O provided with a coiled spring O Secured on the threaded part of the base is a cap D. This cap has a center hole through which the top O of the button C projects, and in one side is a vertical notch D adapted to register with the notch 13 in the base. In these notches the part O of the button O is free to be moved vertically. On the opposite side of the cap is a threaded projection D Pivotally supported on the threaded projection D of the cap D is a link E, having a threaded bore E adapted to fit the threaded part D of the cap I), and rotate thereon. Pivotally secured to the other end E of the link E, is a secured link F. On the free end of this link is a pivot pin F having an oblong head F and a lip F adapted to engage the edge of the link E, and when so engaged the axis of the pivot F is coincident with the axis of the projection D on which the link E pivots, as shown in Fig. 1.

The parts so far described and connected together completes that part of my device which is secured to the top rail of the lower sash.

Secured to the top of the rail of the top sash by suitable screws, is a bracket G. In this bracket is an open jaw G into which the pivot pin F of the link F is insertible and free to be rotated. On one end of the upper part of the jaw G is a projecting lip G Vhen the parts are constructed and connected as described and illustrated, their use and operation are as follows: Before the base B is placed on the sash rail the parts are connected as follows: The leg C of the but ton C encircled by the spring C is inserted in the hole B in the base 15, and the part O is inserted in the notch 13'. The cap D is then placed over the button C, the head C projecting through the hole in the top of the cap. To screw the cap on the base, pressure is applied on the projecting top C of the button to compress the spring around the leg C and hold the part C in the bottom of the notch B in the base B. \Vhcn the button is held in the position above described the cap can be then screwed down on the base. When the cap is screwed as far on the base as desired, the pressure is removed from the button which pressed up- Supported ward by the spring forces the part G into the notch D in the cap and thereby locks the cap and base together which is the normal position of those parts. To connect the links with the base, the button is pressed and the cap revolved a half turn to the left till the lug I) engages the part C and stops the revolving movement in the position shown in Fig. 1. The threaded end E of the link E is then screwed on the projection D of the cap D to the position shown in Fig. 1 and the base is then screwed to the top rail of the bottom sash by the screws The bracket G is then secured to the bottom rail of the top sash by the screws G with the jaw G open toward the left. Pressure applied to the button releases the part C from the cap which then together with the folded links is turned to the right. This rotary movement of cap and links swings the pivot pin F into the jaw G as shown in Fig. 2 and the notches B" and D are then coincident thereby permitting the spring to force the button vertically in the notches and locking the cap on the base. The lip F of the link F overlaps the edge of the link E and thereby prevents any vertical movement of either sash.

To open either or both sash for ventilation the links E and F are moved over from left to right the ends of the links pivoting on the projection D of the cap D and in the jaw G of the bracket G to the position shown in Fig. 3. \Vhen in that position the lower sash can be raised or the upper sash lowered, or both be opened till the links are thereby drawn to a vertical position as shown in Fig. 6. When the links are moved over from left to right the position of the lip F and edge of the link E is the reverse of that shown in Fig. l and the link E is thereby free to leave the lip; this movement unlocks the links and allows a vertical movement of those parts. hen the links are in a vertical line the link F is engaged by the stop lug B on the base B thereby preventing the links from folding except in the direction from which they were opened. In the movement of the pivot pin F in the jaw G of the bracket G the flange head F of the pivot pin engages the sides of the j aw and the lip G thereby preventing a disconnection of the pivot pin and bracket in any position except that shown in Fig. 2 and then only when pressure forces the button to the bottom of the base and thereby permit the cap and links to be turned to the left a half turn releasing both sash from the fastener.

What I claim and desire to secure by Letters Patent is 1. A sash fastener consisting of a vertical cylindrical base, threaded externally, notched vertically through said threaded part and flanged whereby it is adapted to be secured to the sash rail; a cylindrical cap threaded internally and thereby adapted to be revo lubly secured on said base; said cap having a vertical notch adapted to register with the notch in said base, and a central hole adapted to admit the head of a button; a button movable vertically in said base and cap having a projection slidable vertically in said notches, and a spring in said base adapted to press said button against the top of said cap and to thereby lock said cap and base together; a pair of links pivoted to gether and to said cap, and to a bracket secured on the other sash; a bracket secured to the other sash adapted for pivotal connection with one of said links as described.

2. In a device of the kind described, a flanged cylindrical base attachable to a window sash, said base being threaded externally and notched vertically in the threaded part; a cap revolubly secured on the threaded part of said base and notched to correspond with the notch in said base; a spring pressed button movable Vertically in said base and cap and in the notches therein and thereby adapted to lock and unlock said parts; means 0-11 said cap adapted to pivotally support one end of a. pair of links; a pair of links pivotally joined, one end of one of said links pivotally connected with said cap, and one end of the other link having a pivot pin insertible in a bracket afliXed on the opposite sash, a bracket attachable to the other sash and adapted for pivotal connection with said pivot pin on said last mentioned link.

3. In a device of the kind described, the combination with a cylindrical base attachable to a sash rail, said base having a vertical notch and aperture; of a cap revolubly secured on said base, having a notch adapted to register with the notch in said base, and a central aperture; a button movable vertically in said base and cap, having a head protruding through the aperture in sald cap, and a leg slidable in the aperture in said base, and a projection slidable vertically in said notches in said base and cap; a spring on said leg of said button adapted to hold said button in said base and cap in the locked position; a pair of pivoted links, one of said links pivotally secured to said cap, the other link adapted to be pivoted to a bracket on the other sash; a bracket adapted to be attached to a sash rail and pivotally connected to the last mentioned one of said links.

4. In a device of the kind described, the combination with a threaded hollow base attachable to a sash rail, said base having a hollow cap revoluble horizontally on said base; of means inclosed in said base and cap and movable vertically therein whereby said cap is normally locked to said base and can be unlocked and then be revolved on said base; a pair of connected links pivotally connected to said cap and to a bracket on the opposite sash rail; a bracket secured on said opposite rail adapted to be pivotally connected to said base by said links and cap as described.

5. In a device of the kind described, the combination with a cylindrical base attachable to the rail of a sash, a cap revolnbly secured on said base and adapted to be locked to said base; of means movable vertically in said base and cap adapted to lock and un lock said base and cap; a plurality of connected links, one end thereof adapted for connection with said cap, the other end adapted for connection with a bracket on the opposite sash, and a bracket on the other sash adapted to be pivotally connected with said links.

6. In a device of the kind described, the combination with a base attachable to a sash rail, a cap revoluble horizontally on said base, means in said base and cap adapted to be moved vertically in said base and cap and lock and unlock said parts; and flexible means adapted to connect said cap and a bracket on the opposite sash and to be disconnected therefrom.

JOHN A. JOHNSON.

Witnesses:

THOMAS J. MORGAN, JOSEPH STAAB. 

